I have an existing WiFi network in my home and I recently added an Airport Time Capsule solely for backing up our MacBooks. I plugged the TC into my existing router and during the setup of the TC it asked me to create and name a new WiFi network. The backups work just fine but lately, my iPad began automatically connecting to this new wireless network without even asking me. I assume it used the login stored in my iCloud Keychain. This network does not have Internet access so when it does this I lose Internet on my iPad and I have to go in and manually select my original home network. Sometimes the MacBooks do this also. How do I stop my devices from connecting to the network on the TC without screwing up the backing up of the MacBooks?